@Override
public void onDrag(float dx, float dy) {
DraweeView<GenericDraweeHierarchy> draweeView = getDraweeView();
if (draweeView != null && !mScaleDragDetector.isScaling()) {
mMatrix.postTranslate(dx, dy);
checkMatrixAndInvalidate();
ViewParent parent = draweeView.getParent();
if (parent == null) {
return;
}
if (mAllowParentInterceptOnEdge
&& !mScaleDragDetector.isScaling()
&& !mBlockParentIntercept) {
if (mScrollEdge == EDGE_BOTH
|| (mScrollEdge == EDGE_LEFT && dx >= 1f)
|| (mScrollEdge == EDGE_RIGHT && dx <= -1f)) {
parent.requestDisallowInterceptTouchEvent(false);
}
} else {
parent.requestDisallowInterceptTouchEvent(true);
}
}
}
@Override
public void onDrag(float dx, float dy) {
if (mScaleDragDetector.isScaling()) {
return; // Do not drag if we are already scaling
}
if (DEBUG) {
LogManager.getLogger().d(LOG_TAG, String.format("onDrag: dx: %.2f. dy: %.2f", dx, dy));
}
ImageView imageView = getImageView();
mSuppMatrix.postTranslate(dx, dy);
checkAndDisplayMatrix();
/**
* Here we decide whether to let the ImageView's parent to start taking over the touch event.
*
* <p>First we check whether this function is enabled. We never want the parent to take over if
* we're scaling. We then check the edge we're on, and the direction of the scroll (i.e. if
* we're pulling against the edge, aka 'overscrolling', let the parent take over).
*/
ViewParent parent = imageView.getParent();
if (mAllowParentInterceptOnEdge && !mScaleDragDetector.isScaling() && !mBlockParentIntercept) {
if (mScrollEdge == EDGE_BOTH
|| (mScrollEdge == EDGE_LEFT && dx >= 1f)
|| (mScrollEdge == EDGE_RIGHT && dx <= -1f)) {
if (null != parent) parent.requestDisallowInterceptTouchEvent(false);
}
} else {
if (null != parent) {
parent.requestDisallowInterceptTouchEvent(true);
}
}
}
public boolean onTouchEvent(MotionEvent ev) {
int action = ev.getActionMasked();
ViewParent parent = getParent(); // LinearLayout
gestureDetector.onTouchEvent(ev);
switch (action) {
case MotionEvent.ACTION_DOWN:
this.mDragHelper.processTouchEvent(ev);
parent.requestDisallowInterceptTouchEvent(true);
sX = ev.getRawX();
sY = ev.getRawY();
return true;
case MotionEvent.ACTION_MOVE:
float distanceX = ev.getRawX() - sX;
float distanceY = ev.getRawY() - sY;
sX = ev.getRawX();
sY = ev.getRawY();
float angle = Math.abs(distanceY / distanceX);
angle = (float) Math.toDegrees(Math.atan(angle));
if (angle > 30) {
parent.requestDisallowInterceptTouchEvent(false);
return false;
}
parent.requestDisallowInterceptTouchEvent(true);
mDragHelper.processTouchEvent(ev);
break;
case MotionEvent.ACTION_UP:
case MotionEvent.ACTION_CANCEL:
default:
parent.requestDisallowInterceptTouchEvent(true);
mDragHelper.processTouchEvent(ev);
}
return true; // 必须返回true,表示已经正确处理touch事件,才能继续后续的拖动*/
}
@Override
public final boolean onTouch(View v, MotionEvent ev) {
boolean handled = false;
if (mZoomEnabled && hasDrawable((ImageView) v)) {
ViewParent parent = v.getParent();
switch (ev.getAction()) {
case ACTION_DOWN:
// First, disable the Parent from intercepting the touch
// event
if (null != parent) parent.requestDisallowInterceptTouchEvent(true);
else Log.i(LOG_TAG, "onTouch getParent() returned null");
// If we're flinging, and the user presses down, cancel
// fling
cancelFling();
break;
case ACTION_CANCEL:
case ACTION_UP:
// If the user has zoomed less than min scale, zoom back
// to min scale
if (getScale() < mMinScale) {
RectF rect = getDisplayRect();
if (null != rect) {
v.post(
new AnimatedZoomRunnable(getScale(), mMinScale, rect.centerX(), rect.centerY()));
handled = true;
}
}
break;
}
// Check to see if the user double tapped
if (null != mGestureDetector && mGestureDetector.onTouchEvent(ev)) {
handled = true;
}
if (!handled && null != parent) {
parent.requestDisallowInterceptTouchEvent(false);
}
// Finally, try the Scale/Drag detector
if (null != mScaleDragDetector && mScaleDragDetector.onTouchEvent(ev)) {
handled = true;
}
}
return handled;
}
/**
* 通知父类不要拦截touch事件 Tries to claim the user's drag motion, and requests disallowing any ancestors
* from stealing events in the drag.
*/
private void attemptClaimDrag() {
mParent = getParent();
if (mParent != null) {
// 通知父类不要拦截touch事件
mParent.requestDisallowInterceptTouchEvent(true);
}
}
/**
* @param arg0
* @return
*/
@Override
public boolean onTouchEvent(MotionEvent event) {
// TODO Auto-generated method stub
ViewParent viewParent = getParent();
switch (event.getAction()) {
case MotionEvent.ACTION_MOVE:
viewParent.requestDisallowInterceptTouchEvent(true);
break;
case MotionEvent.ACTION_UP:
case MotionEvent.ACTION_CANCEL:
viewParent.requestDisallowInterceptTouchEvent(false);
break;
}
return super.onTouchEvent(event);
}
@SuppressLint("ClickableViewAccessibility")
@Override
public boolean onTouch(View v, MotionEvent ev) {
boolean handled = false;
if (mZoomEnabled && hasDrawable((ImageView) v)) {
ViewParent parent = v.getParent();
switch (ev.getAction()) {
case ACTION_DOWN:
// First, disable the Parent from intercepting the touch
// event
if (null != parent) {
parent.requestDisallowInterceptTouchEvent(true);
} else {
LogManager.getLogger().i(LOG_TAG, "onTouch getParent() returned null");
}
// If we're flinging, and the user presses down, cancel
// fling
cancelFling();
break;
case ACTION_CANCEL:
case ACTION_UP:
// If the user has zoomed less than min scale, zoom back
// to min scale
if (getScale() < mMinScale) {
RectF rect = getDisplayRect();
if (null != rect) {
v.post(
new AnimatedZoomRunnable(getScale(), mMinScale, rect.centerX(), rect.centerY()));
handled = true;
}
}
break;
}
// Try the Scale/Drag detector
if (null != mScaleDragDetector) {
boolean wasScaling = mScaleDragDetector.isScaling();
boolean wasDragging = mScaleDragDetector.isDragging();
handled = mScaleDragDetector.onTouchEvent(ev);
boolean didntScale = !wasScaling && !mScaleDragDetector.isScaling();
boolean didntDrag = !wasDragging && !mScaleDragDetector.isDragging();
mBlockParentIntercept = didntScale && didntDrag;
}
// Check to see if the user double tapped
if (null != mGestureDetector && mGestureDetector.onTouchEvent(ev)) {
handled = true;
}
}
return handled;
}
@Override
public boolean onInterceptTouchEvent(MotionEvent ev) {
if (ev.getActionMasked() == MotionEvent.ACTION_DOWN) {
ViewParent p = getParent();
if (p != null) p.requestDisallowInterceptTouchEvent(true);
}
return false;
}
@Override
public boolean onInterceptTouchEvent(MotionEvent event) {
// FIXME: 应该只反拦截水平方向的手式
ViewParent parent = getParent();
if (parent != null) {
parent.requestDisallowInterceptTouchEvent(true);
}
return super.onInterceptTouchEvent(event);
}
@Override
public boolean dispatchTouchEvent(@NonNull MotionEvent ev) {
switch (ev.getAction()) {
case MotionEvent.ACTION_MOVE:
float deltaX = prevX - ev.getX();
if (!drag && Math.abs(deltaX) > mTouchSlop) {
final ViewParent parent = getParent();
if (parent != null) {
parent.requestDisallowInterceptTouchEvent(true);
}
drag = true;
if (deltaX > 0) {
deltaX -= mTouchSlop;
} else {
deltaX += mTouchSlop;
}
}
if (drag) {
final int oldX = getScrollX();
final int range = getScrollRange();
boolean canOverscroll =
overscrollMode == OVER_SCROLL_ALWAYS
|| (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && range > 0);
if (canOverscroll) {
float pulledToY = oldX + deltaX;
if (pulledToY < 0) {
leftGlow.onPull(deltaX / getWidth(), 1.f - ev.getY() / getHeight());
if (!rightGlow.isFinished()) rightGlow.onRelease();
} else if (pulledToY > range) {
rightGlow.onPull(deltaX / getWidth(), ev.getY() / getHeight());
if (!leftGlow.isFinished()) leftGlow.onRelease();
}
if (leftGlow != null && (!leftGlow.isFinished() || !rightGlow.isFinished()))
postInvalidate();
}
}
break;
case MotionEvent.ACTION_UP:
case MotionEvent.ACTION_CANCEL:
if (drag) {
drag = false;
if (leftGlow != null) {
leftGlow.onRelease();
rightGlow.onRelease();
}
}
break;
}
prevX = ev.getX();
return super.dispatchTouchEvent(ev);
}
private void requestParentTouchRecursive(
@NonNull ViewParent argThisParent, boolean argDisallowTouch) {
argThisParent.requestDisallowInterceptTouchEvent(argDisallowTouch);
ViewParent nextParent = argThisParent.getParent();
if (nextParent != null) {
// Log.d("PlayerSeekbar", nextParent.toString() + " -> " + argDisallowTouch);
requestParentTouchRecursive(nextParent, argDisallowTouch);
}
}
@Override
public boolean onTouch(View v, MotionEvent event) {
int action = MotionEventCompat.getActionMasked(event);
switch (action) {
case MotionEvent.ACTION_DOWN:
{
ViewParent parent = v.getParent();
if (parent != null) {
parent.requestDisallowInterceptTouchEvent(true);
}
cancelFling();
}
break;
case MotionEvent.ACTION_UP:
case MotionEvent.ACTION_CANCEL:
{
ViewParent parent = v.getParent();
if (parent != null) {
parent.requestDisallowInterceptTouchEvent(false);
}
}
break;
}
boolean wasScaling = mScaleDragDetector.isScaling();
boolean wasDragging = mScaleDragDetector.isDragging();
boolean handled = mScaleDragDetector.onTouchEvent(event);
boolean noScale = !wasScaling && !mScaleDragDetector.isScaling();
boolean noDrag = !wasDragging && !mScaleDragDetector.isDragging();
mBlockParentIntercept = noScale && noDrag;
if (mGestureDetector.onTouchEvent(event)) {
handled = true;
}
return handled;
}
@Override
public void setZoomable(boolean zoomable) {
mZoomEnabled = zoomable;
update();
View v = getImageView();
if (!zoomable && v != null) {
ViewParent parent = v.getParent();
if (parent != null) {
parent.requestDisallowInterceptTouchEvent(false);
}
}
}
@Override
public boolean onTouchEvent(MotionEvent event) {
int action = event.getAction();
float x = event.getX();
float y = event.getY();
float deltaX = Math.abs(x - mFirstDownX);
float deltaY = Math.abs(y - mFirstDownY);
switch (action) {
case MotionEvent.ACTION_DOWN:
ViewParent mParent = getParent();
if (mParent != null) {
// 通知父控件不要拦截本view的触摸事件
mParent.requestDisallowInterceptTouchEvent(true);
}
mFirstDownX = x;
mFirstDownY = y;
bmCurBtnPic = bmBtnPressed;
startBtnPos = mChecked ? onBtnPos : offBtnPos;
break;
case MotionEvent.ACTION_MOVE:
float time = event.getEventTime() - event.getDownTime();
curBtnPos = startBtnPos + event.getX() - mFirstDownX;
if (curBtnPos >= onBtnPos) {
curBtnPos = onBtnPos;
}
if (curBtnPos <= offBtnPos) {
curBtnPos = offBtnPos;
}
mTurningOn = curBtnPos > bgWidth / 2 - btnWidth / 2;
break;
case MotionEvent.ACTION_UP:
bmCurBtnPic = bmBtnNormal;
time = event.getEventTime() - event.getDownTime();
if (deltaY < mTouchSlop && deltaX < mTouchSlop && time < mClickTimeout) {
if (mPerformClick == null) {
mPerformClick = new PerformClick();
}
if (!post(mPerformClick)) {
performClick();
}
} else {
startAnimation(mTurningOn);
}
break;
}
invalidate();
return isEnabled();
}
private boolean touchEvent(MotionEvent ev) {
initVelocityTrackerIfNotExists();
mVelocityTracker.addMovement(ev);
final int action = ev.getAction();
switch (action & MotionEvent.ACTION_MASK) {
case MotionEvent.ACTION_DOWN:
{
if (getChildCount() == 0 || !inScrollArea(ev)) {
return false;
}
if ((mIsBeingDragged = !mScroller.isFinished())) {
final ViewParent parent = getParent();
if (parent != null) {
parent.requestDisallowInterceptTouchEvent(true);
}
}
/*
* If being flinged and user touches, stop the fling. isFinished will be false
* if being flinged.
*/
if (!mScroller.isFinished()) {
mScroller.abortAnimation();
}
// Remember where the motion event started
mLastMotionX = (int) ev.getX();
mActivePointerId = ev.getPointerId(0);
break;
}
case MotionEvent.ACTION_MOVE:
final int activePointerIndex = ev.findPointerIndex(mActivePointerId);
if (activePointerIndex == -1) {
Log.e(TAG, "Invalid pointerId=" + mActivePointerId + " in onTouchEvent");
break;
}
final int x = (int) ev.getX(activePointerIndex);
int deltaX = mLastMotionX - x;
if (!mIsBeingDragged && Math.abs(deltaX) > mTouchSlop) {
final ViewParent parent = getParent();
if (parent != null) {
parent.requestDisallowInterceptTouchEvent(true);
}
mIsBeingDragged = true;
if (deltaX > 0) {
deltaX -= mTouchSlop;
} else {
deltaX += mTouchSlop;
}
}
if (mIsBeingDragged) {
// Scroll to follow the motion event
mLastMotionX = x;
final int oldX = getScrollX();
final int oldY = getScrollY();
final int range = getScrollRange();
final int overscrollMode = getOverScrollMode();
final boolean canOverscroll =
overscrollMode == OVER_SCROLL_ALWAYS
|| (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && range > 0);
if (overScrollBy(deltaX, 0, getScrollX(), 0, range, 0, mOverscrollDistance, 0, true)) {
// Break our velocity if we hit a scroll barrier.
mVelocityTracker.clear();
}
onScrollChanged(getScrollX(), getScrollY(), oldX, oldY);
}
break;
case MotionEvent.ACTION_UP:
if (mIsBeingDragged) {
final VelocityTracker velocityTracker = mVelocityTracker;
velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity);
int initialVelocity = (int) velocityTracker.getXVelocity(mActivePointerId);
if (getChildCount() > 0) {
if ((Math.abs(initialVelocity) > mMinimumVelocity)) {
fling(-initialVelocity);
} else {
int finalX = getScrollX();
finalX = getScrollXFromFinalX(finalX);
if (mScroller.springBack(getScrollX(), getScrollY(), finalX, finalX, 0, 0)) {
postInvalidateOnAnimation();
}
}
}
mActivePointerId = INVALID_POINTER;
mIsBeingDragged = false;
recycleVelocityTracker();
}
break;
case MotionEvent.ACTION_CANCEL:
if (mIsBeingDragged && getChildCount() > 0) {
if (mScroller.springBack(getScrollX(), getScrollY(), 0, getScrollRange(), 0, 0)) {
postInvalidateOnAnimation();
}
mActivePointerId = INVALID_POINTER;
mIsBeingDragged = false;
recycleVelocityTracker();
}
break;
case MotionEvent.ACTION_POINTER_UP:
onSecondaryPointerUp(ev);
break;
}
return true;
}
private void setParentDisallowInterceptTouchEvent(boolean flag) {
for (ViewParent viewParent : viewParents) {
viewParent.requestDisallowInterceptTouchEvent(flag);
}
}
@Override
public boolean onTouchEvent(MotionEvent event) {
float v = (value - min) / (max - min);
float v2 = (value2 - min) / (max - min);
if (event.getAction() == MotionEvent.ACTION_DOWN) {
int thumbX =
(int)
(v * (getWidth() - getPaddingLeft() - getPaddingRight() - thumbRadius * 2)
+ getPaddingLeft()
+ thumbRadius);
int thumbX2 =
(int)
(v2 * (getWidth() - getPaddingLeft() - getPaddingRight() - thumbRadius2 * 2)
+ getPaddingLeft()
+ thumbRadius2);
if (Math.abs(event.getX() - thumbX) < Math.abs(event.getX() - thumbX2)) {
draggedThumb = 1;
if (radiusAnimator != null) radiusAnimator.end();
radiusAnimator = ValueAnimator.ofFloat(thumbRadius, THUMB_RADIUS_DRAGGED);
radiusAnimator.setDuration(200);
radiusAnimator.setInterpolator(interpolator);
radiusAnimator.addUpdateListener(
new ValueAnimator.AnimatorUpdateListener() {
@Override
public void onAnimationUpdate(ValueAnimator animation) {
thumbRadius = (float) animation.getAnimatedValue();
postInvalidate();
}
});
radiusAnimator.start();
} else {
draggedThumb = 2;
if (radiusAnimator != null) radiusAnimator.end();
radiusAnimator = ValueAnimator.ofFloat(thumbRadius2, THUMB_RADIUS_DRAGGED);
radiusAnimator.setDuration(200);
radiusAnimator.setInterpolator(interpolator);
radiusAnimator.addUpdateListener(
new ValueAnimator.AnimatorUpdateListener() {
@Override
public void onAnimationUpdate(ValueAnimator animation) {
thumbRadius2 = (float) animation.getAnimatedValue();
postInvalidate();
}
});
radiusAnimator.start();
}
ViewParent parent = getParent();
if (parent != null) parent.requestDisallowInterceptTouchEvent(true);
} else if (event.getAction() == MotionEvent.ACTION_CANCEL
|| event.getAction() == MotionEvent.ACTION_UP) {
if (draggedThumb == 1) {
if (style == Style.Discrete) {
float val = (float) Math.floor((value - min + step / 2) / step) * step + min;
if (valueAnimator != null) valueAnimator.cancel();
valueAnimator = ValueAnimator.ofFloat(value, val);
valueAnimator.setDuration(200);
valueAnimator.setInterpolator(interpolator);
valueAnimator.addUpdateListener(
new ValueAnimator.AnimatorUpdateListener() {
@Override
public void onAnimationUpdate(ValueAnimator animation) {
value = (float) animation.getAnimatedValue();
int thumbX =
(int)
((value - min)
/ (max - min)
* (getWidth() - getPaddingLeft() - getPaddingRight())
+ getPaddingLeft());
int thumbY = getHeight() / 2;
int radius = rippleDrawable.getRadius();
rippleDrawable.setBounds(
thumbX - radius, thumbY - radius, thumbX + radius, thumbY + radius);
postInvalidate();
}
});
valueAnimator.start();
}
if (radiusAnimator != null) radiusAnimator.end();
radiusAnimator = ValueAnimator.ofFloat(thumbRadius, THUMB_RADIUS);
radiusAnimator.setDuration(200);
radiusAnimator.setInterpolator(interpolator);
radiusAnimator.addUpdateListener(
new ValueAnimator.AnimatorUpdateListener() {
@Override
public void onAnimationUpdate(ValueAnimator animation) {
thumbRadius = (float) animation.getAnimatedValue();
postInvalidate();
}
});
radiusAnimator.start();
} else {
if (style == Style.Discrete) {
float val2 = (float) Math.floor((value2 - min + step / 2) / step) * step + min;
if (valueAnimator != null) valueAnimator.cancel();
valueAnimator = ValueAnimator.ofFloat(value2, val2);
valueAnimator.setDuration(200);
valueAnimator.setInterpolator(interpolator);
valueAnimator.addUpdateListener(
new ValueAnimator.AnimatorUpdateListener() {
@Override
public void onAnimationUpdate(ValueAnimator animation) {
value2 = (float) animation.getAnimatedValue();
int thumbX =
(int)
((value2 - min)
/ (max - min)
* (getWidth() - getPaddingLeft() - getPaddingRight())
+ getPaddingLeft());
int thumbY = getHeight() / 2;
int radius = rippleDrawable.getRadius();
rippleDrawable.setBounds(
thumbX - radius, thumbY - radius, thumbX + radius, thumbY + radius);
postInvalidate();
}
});
valueAnimator.start();
}
if (radiusAnimator != null) radiusAnimator.end();
radiusAnimator = ValueAnimator.ofFloat(thumbRadius2, THUMB_RADIUS);
radiusAnimator.setDuration(200);
radiusAnimator.setInterpolator(interpolator);
radiusAnimator.addUpdateListener(
new ValueAnimator.AnimatorUpdateListener() {
@Override
public void onAnimationUpdate(ValueAnimator animation) {
thumbRadius2 = (float) animation.getAnimatedValue();
postInvalidate();
}
});
radiusAnimator.start();
}
draggedThumb = -1;
ViewParent parent = getParent();
if (parent != null) parent.requestDisallowInterceptTouchEvent(false);
}
if (draggedThumb == 1) {
v = (event.getX() - getPaddingLeft()) / (getWidth() - getPaddingLeft() - getPaddingRight());
v = Math.max(0, Math.min(v, 1));
} else if (draggedThumb == 2) {
v2 = (event.getX() - getPaddingLeft()) / (getWidth() - getPaddingLeft() - getPaddingRight());
v2 = Math.max(0, Math.min(v2, 1));
}
if (v > v2) {
draggedThumb = 3 - draggedThumb;
float t = v;
v = v2;
v2 = t;
}
float newValue = v * (max - min) + min;
float newValue2 = v2 * (max - min) + min;
if (rippleDrawable != null) {
rippleDrawable.setHotspot(event.getX(), event.getY());
int thumbY = getHeight() / 2;
int radius = rippleDrawable.getRadius();
if (draggedThumb == 1) {
int thumbX =
(int) (v * (getWidth() - getPaddingLeft() - getPaddingRight()) + getPaddingLeft());
rippleDrawable.setBounds(
thumbX - radius, thumbY - radius, thumbX + radius, thumbY + radius);
} else if (draggedThumb == 2) {
int thumbX2 =
(int) (v2 * (getWidth() - getPaddingLeft() - getPaddingRight()) + getPaddingLeft());
rippleDrawable.setBounds(
thumbX2 - radius, thumbY - radius, thumbX2 + radius, thumbY + radius);
}
}
postInvalidate();
if (newValue != value && onValueChangedListener != null) {
if (style == Style.Discrete) {
int sv = stepValue(newValue);
int sv2 = stepValue(newValue2);
if (stepValue(value) != sv || stepValue(value2) != sv2)
onValueChangedListener.onValueChanged(this, sv, sv2);
} else {
onValueChangedListener.onValueChanged(this, newValue, newValue2);
}
value = newValue;
}
super.onTouchEvent(event);
return true;
}
public boolean onInterceptTouchEvent(MotionEvent var1) {
boolean var4 = true;
int var2 = var1.getAction();
if (var2 == 2 && this.mIsBeingDragged) {
return true;
} else if (this.getScrollY() == 0 && !ViewCompat.canScrollVertically(this, 1)) {
return false;
} else {
switch (var2 & 255) {
case 0:
var2 = (int) var1.getY();
if (!this.inChild((int) var1.getX(), var2)) {
this.mIsBeingDragged = false;
this.recycleVelocityTracker();
} else {
this.mLastMotionY = var2;
this.mActivePointerId = MotionEventCompat.getPointerId(var1, 0);
this.initOrResetVelocityTracker();
this.mVelocityTracker.addMovement(var1);
if (this.mScroller.isFinished()) {
var4 = false;
}
this.mIsBeingDragged = var4;
this.startNestedScroll(2);
}
break;
case 1:
case 3:
this.mIsBeingDragged = false;
this.mActivePointerId = -1;
this.recycleVelocityTracker();
this.stopNestedScroll();
break;
case 2:
var2 = this.mActivePointerId;
if (var2 != -1) {
int var3 = MotionEventCompat.findPointerIndex(var1, var2);
if (var3 == -1) {
Log.e("NestedScrollView", "Invalid pointerId=" + var2 + " in onInterceptTouchEvent");
} else {
var2 = (int) MotionEventCompat.getY(var1, var3);
if (Math.abs(var2 - this.mLastMotionY) > this.mTouchSlop
&& (this.getNestedScrollAxes() & 2) == 0) {
this.mIsBeingDragged = true;
this.mLastMotionY = var2;
this.initVelocityTrackerIfNotExists();
this.mVelocityTracker.addMovement(var1);
this.mNestedYOffset = 0;
ViewParent var5 = this.getParent();
if (var5 != null) {
var5.requestDisallowInterceptTouchEvent(true);
}
}
}
}
case 4:
case 5:
default:
break;
case 6:
this.onSecondaryPointerUp(var1);
}
return this.mIsBeingDragged;
}
}
private void attemptClaimDrag() {
ViewParent parent = getParent();
if (parent != null) {
parent.requestDisallowInterceptTouchEvent(true);
}
}
/** enables intercept touchevents */
public void enableScroll() {
ViewParent parent = getParent();
if (parent != null) parent.requestDisallowInterceptTouchEvent(false);
}
public boolean onTouchEvent(MotionEvent var1) {
this.initVelocityTrackerIfNotExists();
MotionEvent var9 = MotionEvent.obtain(var1);
int var2 = MotionEventCompat.getActionMasked(var1);
if (var2 == 0) {
this.mNestedYOffset = 0;
}
var9.offsetLocation(0.0F, (float) this.mNestedYOffset);
ViewParent var10;
switch (var2) {
case 0:
if (this.getChildCount() == 0) {
return false;
}
boolean var8;
if (!this.mScroller.isFinished()) {
var8 = true;
} else {
var8 = false;
}
this.mIsBeingDragged = var8;
if (var8) {
var10 = this.getParent();
if (var10 != null) {
var10.requestDisallowInterceptTouchEvent(true);
}
}
if (!this.mScroller.isFinished()) {
this.mScroller.abortAnimation();
}
this.mLastMotionY = (int) var1.getY();
this.mActivePointerId = MotionEventCompat.getPointerId(var1, 0);
this.startNestedScroll(2);
break;
case 1:
if (this.mIsBeingDragged) {
VelocityTracker var11 = this.mVelocityTracker;
var11.computeCurrentVelocity(1000, (float) this.mMaximumVelocity);
var2 = (int) VelocityTrackerCompat.getYVelocity(var11, this.mActivePointerId);
if (Math.abs(var2) > this.mMinimumVelocity) {
this.flingWithNestedDispatch(-var2);
}
this.mActivePointerId = -1;
this.endDrag();
}
break;
case 2:
int var4 = MotionEventCompat.findPointerIndex(var1, this.mActivePointerId);
if (var4 == -1) {
Log.e(
"NestedScrollView",
"Invalid pointerId=" + this.mActivePointerId + " in onTouchEvent");
} else {
int var5 = (int) MotionEventCompat.getY(var1, var4);
var2 = this.mLastMotionY - var5;
int var3 = var2;
if (this.dispatchNestedPreScroll(0, var2, this.mScrollConsumed, this.mScrollOffset)) {
var3 = var2 - this.mScrollConsumed[1];
var9.offsetLocation(0.0F, (float) this.mScrollOffset[1]);
this.mNestedYOffset += this.mScrollOffset[1];
}
var2 = var3;
if (!this.mIsBeingDragged) {
var2 = var3;
if (Math.abs(var3) > this.mTouchSlop) {
var10 = this.getParent();
if (var10 != null) {
var10.requestDisallowInterceptTouchEvent(true);
}
this.mIsBeingDragged = true;
if (var3 > 0) {
var2 = var3 - this.mTouchSlop;
} else {
var2 = var3 + this.mTouchSlop;
}
}
}
if (this.mIsBeingDragged) {
this.mLastMotionY = var5 - this.mScrollOffset[1];
int var6 = this.getScrollY();
var5 = this.getScrollRange();
var3 = ViewCompat.getOverScrollMode(this);
boolean var12;
if (var3 != 0 && (var3 != 1 || var5 <= 0)) {
var12 = false;
} else {
var12 = true;
}
if (this.overScrollByCompat(0, var2, 0, this.getScrollY(), 0, var5, 0, 0, true)
&& !this.hasNestedScrollingParent()) {
this.mVelocityTracker.clear();
}
int var7 = this.getScrollY() - var6;
if (this.dispatchNestedScroll(0, var7, 0, var2 - var7, this.mScrollOffset)) {
this.mLastMotionY -= this.mScrollOffset[1];
var9.offsetLocation(0.0F, (float) this.mScrollOffset[1]);
this.mNestedYOffset += this.mScrollOffset[1];
} else if (var12) {
this.ensureGlows();
var3 = var6 + var2;
if (var3 < 0) {
this.mEdgeGlowTop.onPull(
(float) var2 / (float) this.getHeight(),
MotionEventCompat.getX(var1, var4) / (float) this.getWidth());
if (!this.mEdgeGlowBottom.isFinished()) {
this.mEdgeGlowBottom.onRelease();
}
} else if (var3 > var5) {
this.mEdgeGlowBottom.onPull(
(float) var2 / (float) this.getHeight(),
1.0F - MotionEventCompat.getX(var1, var4) / (float) this.getWidth());
if (!this.mEdgeGlowTop.isFinished()) {
this.mEdgeGlowTop.onRelease();
}
}
if (this.mEdgeGlowTop != null
&& (!this.mEdgeGlowTop.isFinished() || !this.mEdgeGlowBottom.isFinished())) {
ViewCompat.postInvalidateOnAnimation(this);
}
}
}
}
break;
case 3:
if (this.mIsBeingDragged && this.getChildCount() > 0) {
this.mActivePointerId = -1;
this.endDrag();
}
case 4:
default:
break;
case 5:
var2 = MotionEventCompat.getActionIndex(var1);
this.mLastMotionY = (int) MotionEventCompat.getY(var1, var2);
this.mActivePointerId = MotionEventCompat.getPointerId(var1, var2);
break;
case 6:
this.onSecondaryPointerUp(var1);
this.mLastMotionY =
(int)
MotionEventCompat.getY(
var1, MotionEventCompat.findPointerIndex(var1, this.mActivePointerId));
}
if (this.mVelocityTracker != null) {
this.mVelocityTracker.addMovement(var9);
}
var9.recycle();
return true;
}
@Override
public boolean onTouchEvent(MotionEvent event) {
if (!isEnabledInAdapterView() || !isEnabled()) return true;
if (!isSwipeEnabled()) return super.onTouchEvent(event);
int action = event.getActionMasked();
ViewParent parent = getParent();
gestureDetector.onTouchEvent(event);
Status status = getOpenStatus();
ViewGroup touching = null;
if (status == Status.Close) {
touching = getSurfaceView();
} else if (status == Status.Open) {
touching = getBottomView();
}
switch (action) {
case MotionEvent.ACTION_DOWN:
mDragHelper.processTouchEvent(event);
parent.requestDisallowInterceptTouchEvent(true);
sX = event.getRawX();
sY = event.getRawY();
if (touching != null) touching.setPressed(true);
return true;
case MotionEvent.ACTION_MOVE:
{
if (sX == -1 || sY == -1) {
// Trick:
// When in nested mode, we need to send a constructed ACTION_DOWN MotionEvent to
// mDragHelper, to help
// it initialize itself.
event.setAction(MotionEvent.ACTION_DOWN);
mDragHelper.processTouchEvent(event);
parent.requestDisallowInterceptTouchEvent(true);
sX = event.getRawX();
sY = event.getRawY();
return true;
}
float distanceX = event.getRawX() - sX;
float distanceY = event.getRawY() - sY;
float angle = Math.abs(distanceY / distanceX);
angle = (float) Math.toDegrees(Math.atan(angle));
boolean doNothing = false;
if (mDragEdge == DragEdge.Right) {
boolean suitable =
(status == Status.Open && distanceX > 0)
|| (status == Status.Close && distanceX < 0);
suitable = suitable || (status == Status.Middle);
if (angle > 30 || !suitable) {
doNothing = true;
}
}
if (mDragEdge == DragEdge.Left) {
boolean suitable =
(status == Status.Open && distanceX < 0)
|| (status == Status.Close && distanceX > 0);
suitable = suitable || status == Status.Middle;
if (angle > 30 || !suitable) {
doNothing = true;
}
}
if (mDragEdge == DragEdge.Top) {
boolean suitable =
(status == Status.Open && distanceY < 0)
|| (status == Status.Close && distanceY > 0);
suitable = suitable || status == Status.Middle;
if (angle < 60 || !suitable) {
doNothing = true;
}
}
if (mDragEdge == DragEdge.Bottom) {
boolean suitable =
(status == Status.Open && distanceY > 0)
|| (status == Status.Close && distanceY < 0);
suitable = suitable || status == Status.Middle;
if (angle < 60 || !suitable) {
doNothing = true;
}
}
if (doNothing) {
parent.requestDisallowInterceptTouchEvent(false);
return false;
} else {
if (touching != null) {
touching.setPressed(false);
}
parent.requestDisallowInterceptTouchEvent(true);
mDragHelper.processTouchEvent(event);
}
break;
}
case MotionEvent.ACTION_UP:
case MotionEvent.ACTION_CANCEL:
{
sX = -1;
sY = -1;
if (touching != null) {
touching.setPressed(false);
}
}
default:
parent.requestDisallowInterceptTouchEvent(true);
mDragHelper.processTouchEvent(event);
}
return true;
}
